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Wastewater Plant currently has a remaining capacity of more than 400,000 gallons/day and can accommodate the additional wastewater generated by the proposed zoning district. - Solid Waste Solid waste service includes pick-up by private operators and disposal at the county landfill. For a 55,000 square foot commercial development on the subject site, solid waste generation would be approximately 275 Waste Generation Units (WGUs) or 815 cubic yards of solid waste/year. A WGU is a Waste Generation Unit measurement equivalent to 2.9625 cubic yards of waste/year. While WGUs are units of measurement which can be applied to either commercial or residential uses,. WGUs must be considered in terms of residential units in order to correspond to the county's solid waste level of service standards. According to the county's solid waste regulations, each residential unit generates 1.6 WGUs/unit. With the county's adopted level of service standard of 2.37 cubic yards/person/year and the county's average of 2 persons/unit, each WGU is equivalent to 1.25 people (2/1.6 = 1.25) and 2.9625 cubic yards of solid waste/year (1.25 X 2.37). To calculate the total cubic yards of solid waste for the most intense use allowed on the subject property under the proposed zoning district, staff utilized the following formula: Total number of WGUs X 1.25 X 2.37 (275 X 1.25 X 2.37 = 815 cubic yards/year). A review of the solid waste capacity for the active segment of the county landfill indicates the availability of more than 900,000 cubic yards. The active segment of the landfill has a 3 year capacity, and the landfill has expansion capacity beyond 2010._ Based on staff analysis, the county landfill can accommodate the additional solid waste generated by the site under the proposed zoning. - Drainage All developments are reviewed for compliance with county stormwater regulations which require on-site retention, preservation of floodplain storage and minimum finished floor elevations. In addition, development proposals must meet the discharge requirements of the county Stormwater Management Ordinance. The subject property is located within the M-1 Drainage Basin and the Indian River Farms Water Control District (IRFWCD). Since the site is located within the IRFWCD, development on the property will be prohibited from discharging any runoff in excess of two inches in a 24 hour period, which is the approved IRFWCD discharge rate. In this case, the minimum floor elevation level of service standards do not apply, since the portion of the subject property undergoing the concurrency review (the portion presently zoned A-1) does not lie within a floodplain. However, both the on-site retention and discharge standards also apply to this request. With the most intense use of this site under the proposed zoning, the maximum area of impervious surface will be approximately 179,685 square feet, or 4.125 acres. The maximum runoff volume, based on that amount of impervious surface and the 25 year/24 hour design storm, will be approximately 184,000 cubic feet. In order to maintain the county's adopted level of service, the applicant will be required to retain approximately 144,000 cubic feet of runoff on-site. With the soil characteristics of the subject property, the pre -development runoff rate is estimated to be 24.6 cubic feet/second.` 21 dO.Qlt 91, FADE 4,0